Ivshin Sergei
From Kirov, Russia
EMA: 15990412
Common russian riichi rating (CRR)
Rating date Nov. 8, 2023 (latest changes Nov. 8, 2023).
185 place (85.92).
how we calculated rating score
max_coefficients = (4 * 1 + 3.75 * 1 + 4.20 * 0.86 + 2.80 * 1) = 14.149820000000002
p1 = (343.28 * 3.50 * 0.43 + 200 * 1.20 * 0.57 + 0 + 0 + 0) / (3.50 * 0.43 + 1.20 * 0.57 + 1 + 1 + 1) = 125.74771779751553
p2 = (343.28 * 3.50 * 0.43 + 200 * 1.20 * 0.57) / max_coefficients = 46.085391898978216
score = 125.74771779751553 * 0.5 + 46.085391898978216 * 0.5 = 85.91655484824688
Rating changes
| Date | Place | Points | Reason |
|---|---|---|---|
| 2023-11-06 | 59 -> 185 | 383.16 -> 85.92 |
Kirov Tournament: 14% -> 0% |
| 2021-02-01 | 99 -> 59 | 417.17 -> 383.16 | |
| 2020-02-01 | 99 | 417.17 |
Tournaments
| # | Base rank | Date | Place | Power | Coefficient | Type | Tournament | City | |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 200 |
|
13/16 | 57% | 1.20 | CRR | Vyatka rooster | Kirov | |
| 2 | 343 |
|
45/68 | 43% | 3.50 | RR | Tenpai can't buy happiness | Perm | |
| 3 | 600 |
|
23/56 | 0% | 3.30 | RR | Kirov Tournament | Kirov | |
| 4 | 667 |
|
14/40 | 0% | 2.90 | EMA | Big open chiitoitsu in a small tenpai | Kirov | |
| 5 | 259 |
|
21/28 | 0% | 2.60 | RR | And yet the sinner collects tanyao | Kirov | |
| 6 | 711 |
|
25/84 | 0% | 4.20 | EMA | Haru Shanten 2019 | Perm | |
| 7 | 435 |
|
14/24 | 0% | 2.50 | RR | Toi-Toi-man Tournament | Kirov | |
| 8 | 1000 |
|
🥇 | 1/24 | 0% | 1.40 | RR | Seven ryanmens | Kirov |